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Anatomy Test W08D2
Skeletal system - Curless
16
Anatomy
Undergraduate 4
10/27/2009

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Cards

Term
What is Chondrogenesis?
Definition
the development of cartilage
Term
What is osteogenesis?
Definition
formation of bony tissue
Term
What is embryogenesis?
Definition
formation of the embryo, which leads to fetal development
Term
What does the skeleton form from during embryogenesis?
Definition
mesoderm and the neural crest
Term
What does mesoderm form from during embryogenesis?
Definition
endoderm and ectoderm
Term
What does mesoderm turn into during embryogenesis?
Definition
embryonic connective tissue (mesenchyme)
Term
Which of the bone cells are multinucleated?
Definition
osteoclasts
Term
What do all species in Phylum Chordata have as an embryo?
Definition
a notochord
Term
What is a notochord?
Definition
a temporary endoskeleton for a soft-bodied embryo
Term
What makes an animal a chordate?
Definition
has a notochord, post-anal tail, pharyngeal arches and flits, thyroid gland, endoskeleton, singular tubular dorsal hollow fluid-filled nerve chord
Term
What are pharyngeal arches and flits?
Definition
openings that develop right behind the head. Become gills in fish and tadpoles. In everything else they become part of the head and neck.
Term
What do animals in the sub-phylum vertebrata need to have?
Definition
vertebral column in their endoskeleton, enclosed circulatory system, very distinct head
Term
What makes up the axial skeleton?
Definition
skull, vertebral column, sternum, ribcage, hyoid bone
Term
What makes up the appendicular skeleton?
Definition
girdles, limbs
Term
What is heteroproning? What are the results?
Definition
When genes don't turn off. People end up with tails or extra fingers/toes
Term
What is a somite?
Definition
In vertebrates it's masses of mesoderm distributed along the two sides of the neural tube and that will eventually become dermis, skeletal muscle, and vertebrae
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